On 30/04/21 08:24, Yang Zhong wrote:
+void pc_machine_init_sgx_epc(PCMachineState *pcms) +{ + SGXEPCState *sgx_epc; + X86MachineState *x86ms = X86_MACHINE(pcms); + + sgx_epc = g_malloc0(sizeof(*sgx_epc)); + pcms->sgx_epc = sgx_epc; + + sgx_epc->base = 0x100000000ULL + x86ms->above_4g_mem_size; + + memory_region_init(&sgx_epc->mr, OBJECT(pcms), "sgx-epc", UINT64_MAX); + memory_region_add_subregion(get_system_memory(), sgx_epc->base, + &sgx_epc->mr); + + qemu_opts_foreach(qemu_find_opts("sgx-epc"), sgx_epc_init_func, NULL, + &error_fatal); + + if ((sgx_epc->base + sgx_epc->size) < sgx_epc->base) { + error_report("Size of all 'sgx-epc' =0x%"PRIu64" causes EPC to wrap", + sgx_epc->size); + exit(EXIT_FAILURE);
Or perhaps even drop completely the options and just do "-device sgx-epc,backend=epc1"?
Paolo